Disk plow or harrow



PATENTE!) PBB.16,'1904.

Y W.- SOMBRVILLB.

'DISK PLoW 0R HARROW. APPLIUATON FILED MAB.. 23, 11901.

I0 MODEL.

Wm. Somerville Patented February 16,` 1904. f

UNITED STATES-J PATENT" OFFICE.

- wnmmM soiranviLLE, or sr. Louis,l Missouri.

. DISK PLow onA H ARnw.

SPECIFICATION Yforming part of Letters Patent No. 752,306, dated February 1 6, 190.4.

Appiiaaon nea nm'h 2a, 1eo1.'sera1n0.52,e2s. oa man To all whom it may concern;

Be it known that I, Wmnmm Somme, a citizen of the United States, residing at the city of St. Louis, inthe State of hdissorhhave invented a certain new anduseful Disk Plow or Harrow,

of which the following is such a full,

clear, vand exact descriptionas will enable any one skilled in the art to which it appertains to make and use the same, reference beingh to the accompanying drawings, forming part of this specification. h 'In all disk plows or harrowsheretoforeeonstructed, so far as I am aware, the disks have` been rictionally rotatedby their contact with the ground. It is the object of my invention to .provide means for positively rotating the of a disk plow or barrow, thus lessening theresistance of the disks and increasing the amount and speed of theworkof the plow or barrow.. In the accompanying drawings, which show i so much of one form of a disk plow or hare ing a detail of construction.

5 is the body of row as is necessary to illustrate my invention, Figure 1 is a side elevation.' Fig. 2 is a top plan view, some of the parts being removed; and Fig. 3 is an enlarged sectional view show- V Like marks of reference refer similar parts in the several views of the drawings.

the plow or barrow, which is mounted upon wheels, Aas usual. Only the rear or driving wheels 6 arel shown rin the drawings. The wh lsA caring 8 by motor 10 represents'two shafts which are journaled at the rear of the body 5. On each of the shafts A10 are a numberV ofdisks 12; These disks 12 are dish-shaped and have their concave faces turnedoutwardly, as is usual. They are preferably provided on their periphery. with teeth, so as to facilitatetheir passagethrough the ground. The disks 12 in place of being loosely mounted upon the shafts 10, as is usual, are rigidly mounted on said shafts. On each of the shafts 10 is rigidly mounted a 'sprocket-wheel 14.

6 aredriven through 9, mounted on the body 5.,'

nthe plow.

around a ,sprocketwheel 16, mounted on a shaft 17. The shafts 17 Vare geared together by beveled gear-wheels-IS. On one ofthe shafts 17 isa beveled gearwheel19, which meshes with the beveled gear-wheel 20 on the axle 21-of the driving-wheels 6. f v

In the operation of kmy plow orharrow the power. is imparted'. to the driving-wheels 6 by means of the engine 9. Thispropels the plowv .i

or harrow and at the 'same time, through the sprocket-chains 15 ting-disks 12, thus lessen ng their' resistance and increasing the amount ci work done by J work of the plow or barrow.

l am aware that pnlverizing-machineshave ing knives carried by a vehicleQbody have been driven by a traction-engine adapted to draw the vehicle-body, and therefore do not claim such construction. v

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent of the UnitedStates, is'

In adisk plow or barrow, the combination l i ,withavehicle-bodmof a motor carried there-,

by, a pair of shafts carried by said vehiclebody and set at an angle to each other, a plu' rality of cutting-disks fixed other, a sprocket-chain running from-one set of shafts to the other; andmeas for drivingy said bevel-gears from said motor, substan tially as described. v

- lIntestimony whereor` I have hereunto set myf v hand and aixed my seal in the presence of two Y 'subscribing witnesses.

soMERvnmn `Witnesses: JAMES H. Bryson,

14 is a sprocket-chain 15, which also passes sov positivelydriv'es the cut- The formation of the' teeth in the f peripheries of the disks alsofacilitates the 65 -beenheretofcne constructed in which revolvto'said shafts and capable of movement to and from the ground, 8 

